-66.
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if 3x+7 = 3 then 3x = 3-7 3x = -4 then, x = -4/3
y-3x-3 y=3x+3 A line with a slope of 3 crossing the y-axis at 3.
9x2 + 3x / 3x equals (3x + 1).9x2 + 3x divided by x is 9x + 3 , and then divided by 3 yields the 3x +1.
3x=12 3x/3=12/3 x=4
2x+3=3x-3 2x-3x=-3-3 -x=-6 x=6